3823531640 has 32 divisors (see below), whose sum is σ = 8606904480. Its totient is φ = 1528708992.

The previous prime is 3823531603. The next prime is 3823531697. The reversal of 3823531640 is 461353283.

It is a self number, because there is not a number n which added to its sum of digits gives 3823531640.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70877 + ... + 112563.

It is an arithmetic number, because the mean of its divisors is an integer number (268965765).

Almost surely, 2^3823531640 is an apocalyptic number.

It is an amenable number.

3823531640 is an abundant number, since it is smaller than the sum of its proper divisors (4783372840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3823531640 is a wasteful number, since it uses less digits than its factorization.

3823531640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43991 (or 43987 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 3823531640 is about 61834.7122577602. The cubic root of 3823531640 is about 1563.7052566504.

The spelling of 3823531640 in words is "three billion, eight hundred twenty-three million, five hundred thirty-one thousand, six hundred forty".